Oregon State Hospital俄勒冈州立医院 Office on Smoking and Health办公室发布吸烟与健康 Occupational Safety and Health职业安全与健康 Ohio State Hooligans (skinhead group)俄亥俄州流氓(skinhead组) Orchard Supply Hardware果园供应的硬件 Order of the Silver Hand (game)白银之手(游戏) Office of Safety and Health办公室的安全和健康 Ownship's Heading籍的航向 Oshkosh, WI, USA - Wittman Field (Airport Code)奥,WI,美国- Wittman代码(机场) Operator Shell经营者壳 Osseo Senior High School (Osseo, MN)Osseo高中(Osseo、锰) Outside Hospital外面医院 Oshkosh, Wisconsin, USA美国威斯康辛州奥 Order of St. Helena海伦的斗争 Oshmans Sporting Goods, Inc.Oshmans体育用品有限公司创立于1996年